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Increasing early protein intake is associated with a reduction in insulin-treated hyperglycemia in very preterm
Ajit Mahaveer1, Christopher Grime, Colin Morgan
1Neonatal Intensive Care Unit, Liverpool Women's Hospital, Liverpool, UK.
Insights
Optimizing parenteral nutrition (PN) in very preterm infants by starting a new standardized concentrated neonatal parenteral nutrition (scNPN) regimen earlier improved protein intake. This enhanced protein delivery reduced the incidence of hyperglycemia requiring insulin treatment in these vulnerable infants.
Area of Science:
- Neonatalogy
- Pediatric Nutrition
- Intensive Care Medicine
Background:
- Impaired early protein intake in very preterm infants is linked to growth failure and neurodevelopmental issues.
- Standardized concentrated neonatal parenteral nutrition (scNPN) can enhance early protein delivery.
- A modified scNPN regimen initiated within 4 hours aims to further improve very early protein intake.
Purpose of the Study:
- To assess if a new scNPN regimen improves very early protein intake in infants <29 weeks' gestation.
- To determine if this improved intake occurs without significant PN intolerance or complications.
- To compare outcomes with a previous scNPN regimen.
Main Methods:
- A cohort of 38 infants (<29 weeks' gestation) receiving the modified scNPN regimen (group scNPN2) was studied.
- This group was compared to 38 infants receiving the original scNPN regimen (group scNPN1).
- Data on nutrition intake, metabolic status, and infections were collected.
Main Results:
- Group scNPN2 received earlier PN, resulting in significantly higher protein intake (15.3 g/kg) in the first 7 days compared to group scNPN1 (11.8 g/kg).
- Calorie, lipid, and carbohydrate intake remained similar between groups.
- The incidence of insulin-treated hyperglycemia decreased from 53% in group scNPN1 to 26% in group scNPN2.
Conclusions:
- Earlier initiation of the modified scNPN regimen effectively increases protein intake in very preterm infants.
- Increased early protein intake is associated with a reduced need for insulin to manage hyperglycemia.
- The modified scNPN regimen appears safe and beneficial for very preterm infants.
Background:
Impaired early protein intake in very preterm infants contributes to early growth failure and may affect long-term neurocognitive development. The authors have previously shown that a standardized concentrated neonatal parenteral nutrition (scNPN) formulation can improve the efficiency of early protein administration. They recognized that very early protein intake could be improved further by modifying the original scNPN regimen and starting PN within 4 hours.
Aim:
To demonstrate that the new scNPN regimen could improve very early protein intake in infants <29 weeks' gestation without causing clinically important PN intolerance and complications.
Methods:
All eligible infants <29 weeks' gestation, receiving the modified scNPN regimen and born between October 2009 and December 2010, were studied (group scNPN2). These were compared with previously studied infants, <29 weeks' gestation and receiving the original scNPN regimen and born between June 2006 and December 2006 (group scNPN1). Infant details, actual nutrition intake, and metabolic/infection data were recorded.
Results:
Thirty-eight infants <29 weeks' gestation (group scNPN2) were compared with the 38 infants previously studied (group scNPN1). PN was started earlier in group scNPN2, leading to increased mean (95% confidence interval) total protein intake (first 7 days) of 15.3 (14.5-16.1) g/kg in group scNPN2 vs 11.8 (11.0-12.6) g/kg in group scNPN1. There were no differences in calorie, lipid, and carbohydrate intake. Infants receiving insulin for hyperglycemia fell from 20 (53%) in group scNPN1 to 10 (26%) in group scNPN2.
Conclusion:
Increasing early protein intake is associated with a reduction in insulin-treated hyperglycemia in infants <29 weeks' gestation.
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